compiler/rustc_target/src/spec/apple_sdk_base.rs

   1 use crate::spec::{cvs, TargetOptions};
   2 use std::borrow::Cow;
   3
   4 #[cfg(test)]
   5 #[path = "apple/tests.rs"]
   6 mod tests;
   7
   8 use Arch::*;
   9 #[allow(non_camel_case_types)]
  10 #[derive(Copy, Clone)]
  11 pub enum Arch {
  12     Armv7,
  13     Armv7k,
  14     Armv7s,
  15     Arm64,
  16     Arm64_32,
  17     I386,
  18     #[allow(dead_code)] // Some targets don't use this enum...
  19     X86_64,
  20     X86_64_sim,
  21     X86_64_macabi,
  22     Arm64_macabi,
  23     Arm64_sim,
  24 }
  25
  26 fn target_arch_name(arch: Arch) -> &'static str {
  27     match arch {
  28         Armv7 => "armv7",
  29         Armv7k => "armv7k",
  30         Armv7s => "armv7s",
  31         Arm64 | Arm64_macabi | Arm64_sim => "arm64",
  32         Arm64_32 => "arm64_32",
  33         I386 => "i386",
  34         X86_64 | X86_64_sim | X86_64_macabi => "x86_64",
  35     }
  36 }
  37
  38 fn target_abi(arch: Arch) -> &'static str {
  39     match arch {
  40         Armv7 | Armv7k | Armv7s | Arm64 | Arm64_32 | I386 | X86_64 => "",
  41         X86_64_macabi | Arm64_macabi => "macabi",
  42         // x86_64-apple-ios is a simulator target, even though it isn't
  43         // declared that way in the target like the other ones...
  44         Arm64_sim | X86_64_sim => "sim",
  45     }
  46 }
  47
  48 fn target_cpu(arch: Arch) -> &'static str {
  49     match arch {
  50         Armv7 => "cortex-a8", // iOS7 is supported on iPhone 4 and higher
  51         Armv7k => "cortex-a8",
  52         Armv7s => "cortex-a9",
  53         Arm64 => "apple-a7",
  54         Arm64_32 => "apple-s4",
  55         I386 => "yonah",
  56         X86_64 | X86_64_sim => "core2",
  57         X86_64_macabi => "core2",
  58         Arm64_macabi => "apple-a12",
  59         Arm64_sim => "apple-a12",
  60     }
  61 }
  62
  63 fn link_env_remove(arch: Arch) -> Cow<'static, [Cow<'static, str>]> {
  64     match arch {
  65         Armv7 | Armv7k | Armv7s | Arm64 | Arm64_32 | I386 | X86_64 | X86_64_sim | Arm64_sim => {
  66             cvs!["MACOSX_DEPLOYMENT_TARGET"]
  67         }
  68         X86_64_macabi | Arm64_macabi => cvs!["IPHONEOS_DEPLOYMENT_TARGET"],
  69     }
  70 }
  71
  72 pub fn opts(os: &'static str, arch: Arch) -> TargetOptions {
  73     let abi = target_abi(arch);
  74     TargetOptions {
  75         abi: abi.into(),
  76         cpu: target_cpu(arch).into(),
  77         link_env_remove: link_env_remove(arch),
  78         has_thread_local: false,
  79         ..super::apple_base::opts(os, target_arch_name(arch), abi)
  80     }
  81 }